By means of an intramolecular Baylis-Hillman reaction the cyclopentene derivative 1 has been formed from 2. Asymmetric induction is low (entry 12, table 1). In the sixmembered ring example 9 --> 10 the yield is only 17% - 23% (entries 1 and 2, table 2).
Horner, Leopold; Dickerhof, Karlheinz, Phosphorus and Sulfur and the Related Elements, 1983, vol. 15, p. 213 - 218
作者:Horner, Leopold、Dickerhof, Karlheinz
DOI:——
日期:——
WOLFSBERGER, WERNER, Z. NATURFORSCH., 43,(1988) N 3, 295-298
作者:WOLFSBERGER, WERNER
DOI:——
日期:——
Composition, retardation plate, and liquid-crystal display device
申请人:Li Yi
公开号:US20080090027A1
公开(公告)日:2008-04-17
A composition comprising at least one liquid-crystal compound and a polymer having at least one group of the following formula (A) as the constitutive unit thereof:
wherein Mp represents a trivalent linking group; L represents a single bond, or a bivalent linking group; X represents a substituted or unsubstituted functional group having a cyclic structure.
LASER OSCILLATION ELEMENT
申请人:FUJIFILM Corporation
公开号:US20220145183A1
公开(公告)日:2022-05-12
Provided is a laser oscillation element including a cholesteric liquid crystal layer, in which even in a case where the intensity of excitation light is weak, laser oscillation can be induced. The laser oscillation element includes a cholesteric liquid crystal layer obtained by cholesteric alignment of a liquid crystal compound, in which in a cross-section of the cholesteric liquid crystal layer observed with a scanning electron microscope, bright portions and dark portions derived from the cholesteric liquid crystalline phase are tilted with respect to a main surface of the cholesteric liquid crystal layer, the cholesteric liquid crystal layer includes a colorant that emits light by excitation, and a luminescence wavelength range of the colorant and a selective reflection wavelength range of the cholesteric liquid crystal layer at least partially overlap each other.